Which parameter is set by the therapist in volume control (VC) ventilation?

In volume control (VC) ventilation, the primary parameter that the therapist sets is the volume to be delivered. This means that the ventilator is programmed to deliver a specific tidal volume with each breath. The rationale behind this choice is to ensure that the patient receives a consistent and predictable volume of air with each inhalation, regardless of the patient's airway resistance or lung compliance.

By setting the volume, the therapist can effectively control the patient's ventilation and ensure adequate gas exchange. This is particularly important in patients with conditions that compromise their ability to breathe effectively, as it allows for a deliberate and controlled approach to mechanical ventilation. The ventilator will adjust the pressure required to deliver this predetermined volume as needed, which can vary depending on clinical circumstances.

While parameters like pressure, flow, and duration of inspiration are important components of overall ventilation management, they are not the primary focus in volume control mode. In this mode, the emphasis lies fundamentally on achieving the desired tidal volume to maintain effective ventilation while allowing other dynamic factors to adjust accordingly.